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Photo is of parent taxon

Bernardina rabbitbrush, San Bernardino rubber rabbitbrush

Photo is of parent taxon

Great Basin rabbitbrush, rubber rabbitbrush

Habit Plants 50–150 cm. Plants 70–250 cm.
Stems

yellowish green, becoming whitish, leafy, compactly tomentose.

greenish, usually leafy, compactly tomentose.

Leaves

mostly greenish yellow;

blades 1-nerved, linear, 30–50 × 1–2 mm, faces ± tomentose.

yellowish green;

blades 1-nerved, filiform to linear, 20–50 × 0.8–1 mm, faces glabrate.

Involucres

10–14 mm.

6.5–10 mm.

Corollas

10–12 mm, tubes puberulent, lobes 1.7–2.3 mm, glabrous;

style appendages longer than stigmatic portions.

6–9 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous;

style appendages shorter than or equaling stigmatic portions.

Phyllaries

13–20 (in vertical ranks), apices erect, acuminate, abaxial faces glabrous or tomentose.

11–20, apices erect, acute, glabrous.

Cypselae

densely sericeous;

pappi 7–8 mm.

hairy (sometimes glabrous in Idaho populations);

pappi 4.2–7.6 mm.

2n

= 18 (as Chrysothamnus nauseosus subsp. consimilis).

Ericameria nauseosa var. bernardina

Ericameria nauseosa var. oreophila

Phenology Flowering late summer–fall. Flowering late summer–fall.
Habitat Open yellow-pine forests Alkaline valleys and plains
Elevation 1200–3000 m (3900–9800 ft) 1200–3000 m (3900–9800 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[BONAP county map]
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WY; Mexico (Baja California)
[BONAP county map]
Discussion

The names Chrysothamnus nauseosus subsp. consimilis and var. consimilis (Ericameria nauseosa subsp. consimilis) have been used for this taxon; an equivalent combination has not been made at the varietal level in Ericameria. Variety oreophila intergrades with vars. mohavensis and speciosa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 64. FNA vol. 20, p. 67.
Parent taxa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa Asteraceae > tribe Astereae > Ericameria > Ericameria nauseosa
Sibling taxa
E. nauseosa var. arenaria, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, E. nauseosa var. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. oreophila, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
E. nauseosa var. arenaria, E. nauseosa var. bernardina, E. nauseosa var. bigelovii, E. nauseosa var. ceruminosa, E. nauseosa var. graveolens, E. nauseosa var. hololeuca, E. nauseosa var. iridis, E. nauseosa var. juncea, E. nauseosa var. latisquamea, E. nauseosa var. leiosperma, E. nauseosa var. mohavensis, E. nauseosa var. nana, E. nauseosa var. nauseosa, E. nauseosa var. nitida, E. nauseosa var. psilocarpa, E. nauseosa var. salicifolia, E. nauseosa var. speciosa, E. nauseosa var. texensis, E. nauseosa var. turbinata, E. nauseosa var. washoensis
Synonyms Chrysothamnus nauseosus var. bernardinus Chrysothamnus oreophilus, Chrysothamnus nauseosus var. artus, Chrysothamnus nauseosus subsp. consimilis, Chrysothamnus nauseosus var. consimilis, Chrysothamnus oreophilus var. artus, E. nauseosa var. arta, E. nauseosa subsp. consimilis
Name authority (H. M. Hall) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) (A. Nelson) G. L. Nesom & G. I. Baird: Phytologia 78: 64. (1995)
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